Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-08-29
2006-08-29
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S204000, C345S050000, C345S055000, C714S736000, C714S737000, C324S763010, C324S765010
Reexamination Certificate
active
07098878
ABSTRACT:
A semiconductor device carries out a test utilizing contact with a probe needle without being affected by narrowing of the pitch at which output pads are arranged. The device is equipped with test circuits provided between a plurality of output buffers via which signals are output and output pads corresponding thereto. The test circuit includes output switches caused to sequentially make connections by a controller in test and interpad switches involved in making connections of the output pads with a test pad by the controller in test. In test, probe needles are brought into contact with the test pad. The output pads are not used in test, and can be arranged at a narrowed pitch. Thus, the chip area can be reduced and are therefore so that the pitch for the output pads can be narrowed and the chip area can be decreased.
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Kokubun Masatoshi
Kumagai Masao
Nishizawa Hidekazu
Shigihara Takeo
Udo Shinya
Arent & Fox PLLC
Fujitsu Limited
Shalwala Bipin
Shapiro Leonid
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